*3.2. SM Data*

Due to industrial customers contribute most electricity consumption, electrical providers equipped AMI system to read, collect and save important electricity magnitudes. These magnitudes are read every 15 min and all of them share the same time-stamp. Based on Equations (1)–(3), this paper collects part of them as dataset to train, validate and test the model from State Grid Corporation of China(SGCC) which listed in Table 1. The SM data are labeled manually refer to the result of in-field inspection. The rule for data labeling is that all data of each customer has the same label. There are few label noise in our data set because abnormal customers were not always abnormal.


**Table 1.** Electrical magnitudes of three-phase four-wire.
